Home / 154,612.44-213,363.18-86,628.24

Finding the Fourth Proportional to 154,612.44, 213,363.18 and 86,628.24

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Solution

The fourth proportional to 154,612.44, 213,363.18 and 86,628.24 is: 119,545.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,612.44 : 213,363.18 = 86,628.24 : x
  2. Step 2: Convert to fraction form
    154,612.44/213,363.18 = 86,628.24/x
  3. Step 3: Cross multiply
    154,612.44x = 213,363.18 × 86,628.24
  4. Step 4: Simplify right side
    154,612.44x = 18,483,276,764.20
  5. Step 5: Solve for x
    x = 18,483,276,764.20/154,612.44
  6. Step 6: Final answer
    x = 119,545.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.